TORX PLUS® Fastener Drive Systems

Item: 1245

The TORX PLUS® Drive was designed to enhance assembly line
performance. Manufacturers all over the world have realized significant
improvements and cost savings by switching to the TORX PLUS®
Drive. Since its introduction, TORX PLUS® Drive has consistently
outperformed every other drive system. Its longer tool life and optimal
torque transfer have enhanced product reliability, increased productivity,
and reduced total assembly costs on assembly lines in a multitude of
industries.

Since its introduction, TORX PLUS® Drive has consistently
outperformed every other drive system. Its longer tool life and optimal
torque transfer have enhanced product reliability, increased
productivity, and reduced total assembly costs on assembly lines in a
multitude of industries around the world.

Elliptically-based
Geometry

Broadens contact surface to maximize engagement of driver and recess

Eliminates damaging point-to-point contact

0° Drive Angle

Optimizes torque transmission

Virtually eliminates radial stresses to increase tool bit life

Allows use of thinner-walled recesses

Six Lobes With Large Cross-Sectional Areas

Allows faster tool engagement

Maximizes torque transfer

Increases torsional strength

Vertical Sidewalls & Reduced Recess Fallaway

Increases tool engagement

Virtually eliminates camout

Ensures proper torque transfer

Greatly reduces end load requirements

Minimizes tool slippage and damage it can cause

Can reduce fatigue and muscular stress during manual assembly of fasteners

Greatly Increased Strength and Reliability

100% average improvement in driver bit life; many users of the
TORX PLUS® Drive System have driven 2 to 10 times more fasteners
per drive tool

25% average improvement in driver bit torsional strength

Increased bit strength allows for higher removal torque capability

Inch & Metric In One Drive Tool

Same-sized drive tool seats both inch- and metricsized fasteners

Add or convert to metrics without a tooling change

Reduce the number of tools required by field service personnel

Compatible with TORX® Drive for Field Service

TORX Drive tools can be used to remove and reinstall TORX
PLUS® Drive recess fasteners

PERFECT FOR HIGH - SPEED ASSEMBLY LINES

Difficulty in aligning the drive bit and the recess can force an
assembly line to slow down to assure proper
fastening.

AUTOSERT® FEATURE - THE HIGH
PRODUCTIVITYANSWER TO HIGH RPM ENGAGEMENT

The compound
angle ramps of the AUTOSERT feature guide the driver bit into the
recess, creating a selfcentering and engaging action. It’s the perfect
solution for automated, robotic and other assembly situations where the
driver bit is continuously rotating.

Drive bit usage was reduced from 45 bits per week to less than 5
per week

TORX PLUS® DRIVE SURPASSES THE COMPETITION

What is your most annoying fastening problem? Damaged applications?
Constantly changing tool bits? Perhaps your current system solves one
problem, only to cause another.

Only the TORX PLUS® Drive
gives you all the benefits you need to have a more efficient, more
productive assembly line.

USING TORX PLUS® DRIVE BENEFITS
YOUR ENTIRE ORGANIZATION:

PURCHASING

Reduced tooling costs

Reduced overall costs

MANUFACTURING

Reduced downtime from tooling changes

More assemblies per shift

Reduced worker fatigue

QUALITY CONTROL

Ensures proper seating of fasteners

Reduced field service and warranty claims due to improperly seated
fasteners

Reduced number of scrapped or reworked components

TORX PLUS® DRIVE OUTPERFORMS THE TORX® DRIVE

A finite element analysis (FEA) of the TORX PLUS® Drive System and
the TORX Drive System was conducted to analyze the amount of stress
encountered by both the drive bits and recesses.

The TORX
PLUS® Drive System demonstrated:

An average 25% increase in ultimate torsional strength of the driver bit.

An average 25% increase in ultimate torsional strength of the total
drive system, allowing for higher torque transfer and higher torque
removal capability.

An increase in fatigue life averaging 100% because of reduced
stresses in the driver bit.

Because of the circumferential load transfer of the TORX PLUS®
Drive System, the radial stresses are greatly reduced. This allows for
thinner-walled recesses and demonstrates a more efficient drive
system.

The TORX PLUS Drive directs the forces in a more
circumferential direction than the TORX Drive. Less force is passed
into the fastener head and instead is utilized directly in rotating
the fastener, resulting in a more efficient transfer of torque. This
also allows thinnerwalled recesses to be utilized.

At 20Nm, the
TORX PLUS® Drive has a very small percentage of the drive bit
under stress, and no sign of internal yielding.The TORX Drive bit
has a much higher percentage of the drive bit affected by the combined
stresses (torsional, tensile, etc.) and also shows a small region that
has internal yielding.

The TORX PLUS® and TORX designs show
a similar radial stress value at the point of contact. However, the
radial stresses for the TORX Drive System spread farther into the
fastener recess over a larger area than the TORX PLUS® Drive
System.In fact, the radial stresses in the head quickly dissipate
to zero for the TORX PLUS® Drive System.

NOTE: The
materials used for the TORX and TORX PLUS® models were a typical
thru hardened quench and tempered carbon steel, with properties
representative of a Property Class 10.9 fastener. The material
properties for the drive bit are for a modified S-2 material
corresponding approximately to a hardness of Rockwell C60.

TORX PLUS® DRIVE VARIATIONS

TAMPER-RESISTANT TORX PLUS® DRIVEThis unique TORX
PLUS® variation incorporates a five lobe design and a solid post
formed in the center of the recess.

When combined with a countersunk or button head design, the
fastener is extremely difficult to remove without a special
tamper-resistant TORX PLUS Drive tool

Tamper-resistant TORX PLUS® tooling is only available to the
OEM and their authorized service technicians to limit access and
maintain the integrity of the system

Installation is quick and easy with the proper tool

Recognized as the only truly tamper-resistant drive system - the
preferred internal drive system defined in SAE specification J2317
(Tamper Resistance for Adjustable Parameters on Diesel Fuel
Injection Pumps)

Available in fastener sizes M2.5 - M25 (#3 to 1")

DUAL DRIVE SYSTEMSThe TORX PLUS® Drive System can be
combined with either an external hex or a slot to provide a dual drive
system.

Provides the option of driving or removing the fastener with
commonly available TORX PLUS® tools or with a hex socket or
slotted screwdriver

The slotted TORX PLUS® fastener has a slot that is enclosed at
the ends, so the driver is less likely to slip out and damage
surrounding surfaces

EXTERNAL TORX PLUS® DRIVE SYSTEMDesigned with the same
elliptically-based geometry as the internal drive system, this version
allows the highest torque transfer available.

The superiority of the TORX PLUS® Drive System is
well-documented. No matter what the industry, no matter what the
application, the TORX PLUS® Drive System is proven to keep assembly
lines running smoother and more efficiently.

CONVERT FOR THE
ULTIMATE IN COST SAVINGSThe real savings from the TORX PLUS®
Drive System are on the bottom line. When factors such as the cost of
drive tools, line downtime, design flexibility, productivity,
scrap/rework per shift, worker fatigue and overall product integrity are
considered, the choice to convert becomes clear.

Textron
Fastening Systems can assist in your conversion to the TORX PLUS®
Drive System by providing sample fasteners, drive tools, sales drawings
and technical data; conducting engineering seminars; and performing
comparative laboratory testing on your application in a simulated
production line environment.

TORX PLUS® DRIVE INFORMATION
ONLINETo put the information you need at your fingertips,
Textron Fastening Systems maintains a web site focused on the TORX
PLUS® Drive System. Technical and design data, including head
specifications, test results, downloadable literature and CAD drawings
are all available at www.camcar.textron.com/torxplus.

For a
free TORX PLUS® Drive Solutions packet, including information on the
TORX PLUS® Drive System, AUTOSERT feature, tooling, gaging or any of
our products and services.